package kr.hkit.powerjava.chapter23;

public class ThreadControl {
	static void print(String msg) {
		String threadName = Thread.currentThread().getName();
		System.out.format("%s : %s%n",threadName,msg);
		
	}
	
	private static class MessageLoop implements Runnable {
		
		@Override
		public void run() {
			String[] message = {"Pride will have a fall.",
						"Power is dangerous unless you have humility.",
						"Office changes manners.",
						"Empty vessels make the most sound." };
			
			for(int i = 0; i < message.length; i++) {
				print(message[i]);
				try {
					Thread.sleep(2000);
				} catch (InterruptedException e) {
					print("아직 끝나지 않았어요!");
				}
			}
		}//end of method run()
		
	}// end of class MessageLoop
		
	public static void main(String[] args) throws InterruptedException {
		int tries = 0; // 시도 횟수
		
		ThreadControl.print("추가적인 스레드를 시작힙니다.");
		Thread t = new Thread(new MessageLoop());
		t.start();
		
		ThreadControl.print("추가적인 스레드를 끝나기를 기다립니다.");
		
		while(t.isAlive()) {
			ThreadControl.print("아직 기다립니다.");
			t.join(1000);
			tries++;
			
			if(tries > 2) {
				ThreadControl.print("참을 수 없네요");
				t.interrupt();
				t.join();
			}
		}
		ThreadControl.print("main 스레드 종료!");
	}
}
